GMT K2xx Trucks General Discussion 2014+ Trucks | General Discussion

New Personal Best - 2015 Sierra 6.2

Old Nov 15, 2015 | 08:04 AM
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Default New Personal Best - 2015 Sierra 6.2

2015 Sierra 1500 cc/sb 4x4 Denali - 6.2/8 speed - 3.23 rear gear

Very happy with this truck. It's quiet, smooth, powerful & gets amazing fuel economy!

It's completely stock and weighs 5700lbs. My race weight was 6000lbs. Temps today were mid-40's / 50% humidity.

My best pass was 13.77@99mph. Best 60 foot was 1.91.

Leave at 1200rpm in "4wd Auto" --- "TC" Off, then switch back to 2wd after launch.
Attached Thumbnails New Personal Best - 2015 Sierra 6.2-13.77.jpg  

Last edited by slowfive0; Nov 15, 2015 at 09:43 AM.
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Old Nov 15, 2015 | 08:25 AM
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Damn! I need to put a 6.2 in my truck.
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Old Nov 15, 2015 | 09:18 AM
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Nice, what rear gears are in it?.
I just picked up a new 2015 Sonoma Red Metallic GMC Sierra All Terrain with the 6.2/ 8 speed auto this Friday. It feels good at part throttle compared to my old 08 Denali.
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Old Nov 15, 2015 | 09:42 AM
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3.23 gear. I think that is the only option on the Denali.

I really wanted the 3.42 trailer tow package but they had this in stock and I did want the Magnaride...

Love the truck aside from the gaudy frontend

Originally Posted by JRENIGAR
Nice, what rear gears are in it?.
I just picked up a new 2015 Sonoma Red Metallic GMC Sierra All Terrain with the 6.2/ 8 speed auto this Friday. It feels good at part throttle compared to my old 08 Denali.
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Old Nov 15, 2015 | 10:01 AM
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Why are you putting it in auto and not 4x4 to start? I used 4x4 throughout the whole pass because I believe I read somewhere that the trucks do not disengage the 4x4 when you are wot. So switching it back to 2wd during the pass doesn't change anything until you let out.
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Old Nov 15, 2015 | 11:14 AM
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Originally Posted by slowfive0
2015 Sierra 1500 cc/sb 4x4 Denali - 6.2/8 speed - 3.23 rear gear

Very happy with this truck. It's quiet, smooth, powerful & gets amazing fuel economy!

It's completely stock and weighs 5700lbs. My race weight was 6000lbs. Temps today were mid-40's / 50% humidity.

My best pass was 13.77@99mph. Best 60 foot was 1.91.

Leave at 1200rpm in "4wd Auto" --- "TC" Off, then switch back to 2wd after launch.

Very impressive for a stock truck.
Mine is the same except double cab.
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Old Nov 15, 2015 | 11:20 AM
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No tune either? Thats VERY impressive if so... wow.
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Old Nov 15, 2015 | 04:52 PM
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Very impressive!
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Old Nov 15, 2015 | 05:56 PM
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Dam, thats quick...
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Old Nov 16, 2015 | 06:42 PM
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That's haulin the mail for a untouched truck. Man they just keep getting better and better when I purchased my 11 I thought they would have one hell of time improving on that platform.
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